//
//  Shape.h
//  装饰器模式
//
//  Created by flannery on 2018/12/19.
//  Copyright © 2018年 flannery. All rights reserved.
//

#import <Foundation/Foundation.h>

NS_ASSUME_NONNULL_BEGIN

@interface Shape : NSObject
-(void)draw;
@end

@interface Rectangle : Shape

@end

@interface Circle : Shape

@end

NS_ASSUME_NONNULL_END
